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Service Instruction

WARNING: This page is about a different car, the 2017 Jaguar XJ, 2016 Jaguar XJ, 2015 Jaguar XJ, 2014 Jaguar XJ, and 2013 Jaguar XJ. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Slight surface oil dampness without drops are acceptable and should not be repaired as a leak.
  • Be aware that oil leaks from above the transmission will cause oil to collect on the transmission oil pan i.e. engine leaks, oil cooler pipe leaks, even diesel fuel leak.
  • Fixing the incorrect leak does not satisfy the customer.
  1. Remove the transmission undershield to gain access to the transmission area (Refer to: Air Deflector (Removal and Installation).
  2. Using a suitable degreaser, thoroughly degrease the transmission oil pan and transmission oil pan seal all the way around the transmission, as well as approximately 25-50mm (1-2 inches) above the seal.
    G11291809
  3. Using a suitable detector spray, thoroughly coat the transmission oil pan, going all the way around the transmission. Coat the oil pan seal and 25-50mm (1-2 inches) above the seal.
    G11291810
  4. Install the transmission undershield (Refer to: Air Deflector (Removal and Installation).
  5. Complete a suitable road test and make sure that the engine gets to normal operating temperature
NOTE: Note the exact source of the transmission oil leak.
  1. Remove the transmission undershield (Refer to: Air Deflector (Removal and Installation).
    1. Make sure the oil leak is definitely coming from the transmission oil pan body or the transmission oil pan seal
    2. If you find that the transmission oil pan or the transmission oil pan seal are not leaking, DO NOT change these components
    3. Continue diagnosis until the exact source of the leak is found.
  1. Check the tightening torque figures for the transmission oil pan before suspecting loose screws. Refer to: TRANSMISSION FLUID PAN, GASKET AND FILTER (G1551382)  (Tightening sequence, Specifications)
  1. To install, reverse the removal procedure.
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